package com.lantian.yjmall.product.service.impl;

import com.lantian.yjmall.product.entity.AttrEntity;
import com.lantian.yjmall.product.service.AttrService;
import com.lantian.yjmall.product.vo.AttrGroupWithAttrsVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.lantian.common.utils.PageUtils;
import com.lantian.common.utils.Query;

import com.lantian.yjmall.product.dao.AttrGroupDao;
import com.lantian.yjmall.product.entity.AttrGroupEntity;
import com.lantian.yjmall.product.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * 点击分类   查询分组列表
     * @param params
     * @param catelogId
     * @return
     */
    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {

        String key = (String) params.get("key");
      // select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
        // 拼接查询条件key
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<>();
        if (!StringUtils.isEmpty(key)) {
          wrapper.and((obj) -> {
              obj.eq("attr_group_id", key).or().like("attr_group_name",key);
          });
        }

      if (catelogId == 0) {
          IPage<AttrGroupEntity> page = this.page(
                  new Query<AttrGroupEntity>().getPage(params),
                  wrapper
          );
          return new PageUtils(page);
      } else {
          wrapper.eq("catelog_id",catelogId);
          IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper);

          return new PageUtils(page);
      }
    }

    /**
     * 根据三级分类id 查询分类下的分组及属性信息
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、查询分组信息
        List<AttrGroupEntity> groupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

        //2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = groupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group,attrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
            attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());

        return collect;
    }

}
